Combined thermometer-case and magnifying-lens



(No Model.)

F. A. REICHARIDT.

COMBINED THERMOMETER CASE AND MAGNIPYING LENS. No. 325,186. Patented Aug. 25. 1885.

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FERDINAND A. IIETOHARDT, OF ELIZA BETH, NE\\' JERSEY.

COMBINED THERMOMETER-CASE AND MAGNlFYlNG-LENS.

SPECIFICATION forming part of Letters Patent No. 325,186, dated August 25, 1885.

Application filed February 10, 1885.

To all whom it may concern.-

Be it known that l, FERDINAND A. HEIGH- ARDT, a citizen of the United States, residing at Elizabeth, Union county, State of New Jersey, have invented a certain new and Improved Combined (Jase and Macnifiying Lens, ot'which the following; is a specification.

in a certain class of thermometers ot' delicate construction and sensitive in action, such as are used for clinical purposes, the column of mercury is so very small that it is difiicult to make true and rapid readings; and the object of this invention is to provide a means for assisting the eye in reading the indications of the column of mercury in this class of instruments; and it consists in the application of a lens or magnifiyiug glass to the case in which the thermometer is placed and pro (No model.)

This cover 0 may be attached to the body (Z of the case by any suitable means, a screwthread being shown in the drawings for this purpose. The case may be made of any suitable material, but I prefer metal, as it can he made lighter, stronger, and smaller with this material than with any other adapted for the purpose.

The case 0 (l constitutes a holding and protecting covering for the thermometer e, as well as a handle for the lens a, in using said lens to magnify the indications of the thermometer c, as shown in Fig. 1; or the cover only may be used as a handle for the lens, as

shown in Fig. 3. it is evident that this hollow-handle ot' the magnitying-glass may be used to hold other instruments than thermometers; and it will be observed that the rim of tected when not in use, so that said magnifyl ingglass is always at hand when it is desired to use the thermometer, the case or part of the case to which the lens is attached constituting the handle of the lens. This magnifyingglass I prefer to secure in the end ofthe cover of the case.

In other words, my invention may be said to consist of a magnit'yirig-glass having a hollow handle adapted to hold a thermometer or other instrument, in the are of either of which it is desirable to magnify the part of said instrument under examination. int to di-scribe my invention more particularly I will now refer to the accon'ipanyiim drawings, forming 1 part of this specification. in which Figure 1 represents my improved instrumentholding case and magniilving-gluss combined, showing the application oi" the same. Fig. 2 is a longitudinal section showing the instrument in the ca e. Fig. 3 is a view of the cover ofthe case and magnifying-glass, and Fig. 4 is a view of the body of the case.

The magnifvingglass or lens a is held in the rim 1), as shown in Fig. 2, which rim is secured to the end of the cover 0 of the case.

the magnifying-glass will act as a stop to prevent the ca-se from rollingwhen laid down, as said cases are prci'eably made cylindrical, this form being cheapest to make and best adapted for most purposes for which the hollow-handle magnityingglass will be used; and it is evident that the lens may be secured to the body of the case by any suitable means instead of being secured to the cover.

I am aware that a thermomctercase has been constructed having a lens inserted in the body thereof, but such is not my invention.

What I claim is A case for clinical thermometers, consisting or a tubular body and a. cap adapted to cover the same, the latter having at its eX- tremity a rim holding a magnitlviug-lens, sulr stantially as described, and for the purposes Stt forth.

In testimony whereof 1. have hereunto set my hand,at New York, county and State of New York, this 7th day of February, 1885.

FERDINAND A. RlEIUIlAltlYP.

Witnesses:

liiicnitui) Knvo, ll. 1). humans. 

